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NGSS - HS-ESS1 Earth’s Place in the Universe - http://www.nextgenscience.org/sites/ngss/files/HS-ESS1%205.14.13With%20Footer.pdf

http://www.nextgenscience.org/sites/ngss/files/HS-ESS1%205.14.13With%20Footer.pdf

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Standards: Science

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